[PATCH v2] usb: Remove stack VLA usage
The kernel would like to have all stack VLA usage removed[1]. We already have a pre-processor constant defined MAX_SGLEN. We can use this instead of the variable param-sglen. [1]: https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Tobin C. Harding <m...@tobin.cc> --- drivers/usb/misc/usbtest.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 90028ef541e3..9e1142b8b91b 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -2028,11 +2028,14 @@ test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param, unsignedi; unsigned long packets = 0; int status = 0; - struct urb *urbs[param->sglen]; + struct urb *urbs[MAX_SGLEN]; if (!param->sglen || param->iterations > UINT_MAX / param->sglen) return -EINVAL; + if (param->sglen > MAX_SGLEN) + return -EINVAL; + memset(, 0, sizeof(context)); context.count = param->iterations * param->sglen; context.dev = dev; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 3/4] usb: Remove stack VLA usage
On Fri, Mar 09, 2018 at 04:55:35PM +1100, Tobin C. Harding wrote: > Signed-off-by: Tobin C. Harding <m...@tobin.cc> > --- Please drop this. To much on github not writing proper commit logs :( v2 to come. thanks, Tobin. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 3/4] usb: Remove stack VLA usage
Signed-off-by: Tobin C. Harding <m...@tobin.cc> --- drivers/usb/misc/usbtest.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 90028ef541e3..9e1142b8b91b 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -2028,11 +2028,14 @@ test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param, unsignedi; unsigned long packets = 0; int status = 0; - struct urb *urbs[param->sglen]; + struct urb *urbs[MAX_SGLEN]; if (!param->sglen || param->iterations > UINT_MAX / param->sglen) return -EINVAL; + if (param->sglen > MAX_SGLEN) + return -EINVAL; + memset(, 0, sizeof(context)); context.count = param->iterations * param->sglen; context.dev = dev; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 00/18] use ARRAY_SIZE macro
On Sun, Oct 01, 2017 at 03:30:38PM -0400, Jérémy Lefaure wrote: > Hi everyone, > Using ARRAY_SIZE improves the code readability. I used coccinelle (I > made a change to the array_size.cocci file [1]) to find several places > where ARRAY_SIZE could be used instead of other macros or sizeof > division. > > I tried to divide the changes into a patch per subsystem (excepted for > staging). If one of the patch should be split into several patches, let > me know. > > In order to reduce the size of the To: and Cc: lines, each patch of the > series is sent only to the maintainers and lists concerned by the patch. > This cover letter is sent to every list concerned by this series. Why don't you just send individual patches for each subsystem? I'm not a maintainer but I don't see how any one person is going to be able to apply this whole series, it is making it hard for maintainers if they have to pick patches out from among the series (if indeed any will bother doing that). I get that this will be more work for you but AFAIK we are optimizing for maintainers. Good luck, Tobin. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
